--- /dev/null
+#ifndef HEADER_FILESYS_H
+#define HEADER_FILESYS_H 1
+
+#include <stdbool.h>
+
+void filesys_init (bool reformat);
+bool filesys_create (const char *name);
+struct file *filesys_open (const char *name);
+bool filesys_remove (const char *name);
+
+#endif /* filesys.h */